两种产蛋系统(地板和笼)产蛋质量和安全性的评价

IF 0.5 Q4 AGRICULTURE, DAIRY & ANIMAL SCIENCE Iranian Journal of Applied Animal Science Pub Date : 2014-09-01 DOI:10.4172/2168-9881.1000109
V. G. Stanley, Dacian Nelson, M. Daley
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引用次数: 10

摘要

本研究旨在评估两种产蛋系统(地板产蛋和笼产蛋)对蛋产量、蛋品质和微生物安全性的影响。180只42周龄的蛋鸡被分成两组,每组90只鸡,分别饲养在鸡蛋笼和地板上。采蛋2周,测定母鸡日产蛋量、蛋品质(全蛋、蛋白、蛋黄和壳重)、适销性和市场性。分别于产蛋后0、4、8 h对蛋壳表面细菌总数进行计数。结果表明,笼制母鸡日产蛋量(95%)显著(P<0.05)高于楼制母鸡(85%),但蛋重、蛋白、蛋黄和壳重差异不显著。笼式蛋鸡产蛋率(95%)显著高于地板式蛋鸡产蛋率(89%)(P<0.05)。地板制下蛋率(11%)显著高于笼制下蛋率(4%)(P<0.05)。在产蛋后0和4 h,笼式蛋鸡蛋壳上的细菌数量(分别为4.02和5.90 log cfu/mL)显著低于地板式蛋鸡蛋壳上的细菌数量(分别为6.58和7.25 log cfu/mL) (P<0.05)。产蛋后8 h采集的鸡蛋污染程度无显著差异。研究结果表明,笼养的母鸡比地板下的母鸡产的蛋更多,质量更好,细菌污染更少。
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Evaluation of Two Laying Systems (Floor vs. Cage) on Egg Production, Quality and Safety
A study was conducted to evaluate the effects of two laying systems (floor versus cage) on egg production, egg quality, and microbial safety. One hundred and eighty 42 wk old laying hens were separated into two groups of 90 hens each, and housed in laying cages and a floor laying system. Eggs from the hens were collected for 2 weeks, and hen-day egg production, egg quality (whole egg, albumen, yolk and shell weights), saleability, and marketability were measured. Total bacteria counts on the egg shell surface were also enumerated at 0, 4 and 8 h after laying. Results indicated that hen-day egg production by hens in the cage system (95%) was significantly (P<0.05) higher than production by hens from the floor system (85%), but there was no significant differences in egg weight, albumen, yolk, or shell weights. Hens housed in the cage laying systems produced significantly (P<0.05) more marketable eggs (95%) than hens housed in the floor laying system (89%). Significantly (P<0.05) more unsaleable eggs were also produced by hens in the floor laying system (11%) than in the cage system (4%). Bacteria counts on egg shells from hens of the cage laying system were significantly (P<0.05) lower at 0 and 4 h after laying (4.02 and 5.90 log cfu/mL, respectively) than counts on shells of eggs from the floor laying system (6.58 and 7.25 log cfu/mL, respectively). There was no significant difference in contamination of eggs collected 8 h after laying. Findings indicate hens housed in cages produce more eggs with higher quality and less bacterial contamination than hens house in floors laying systems.
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来源期刊
Iranian Journal of Applied Animal Science
Iranian Journal of Applied Animal Science AGRICULTURE, DAIRY & ANIMAL SCIENCE-
CiteScore
1.40
自引率
0.00%
发文量
0
审稿时长
8 weeks
期刊介绍: Iranian Journal of Applied Animal Science (IJAS) is an international journal publishing Research Articles (Full-Length Original Scientific Papers), Short Communications and Review on animal sciences, and related areas. The journal covers all related topics of Animal Science. Papers are welcome reporting studies in all aspects of animal science including: - Animal breeding and genetics (such as quantitative and molecular analysis of animal performance, genetic improvement and resources, genetics of physiological process, selection schemes for economic animal improvement, impact on animal health, etc) - Animal feeding and nutrition (such as food intake, digestion, nutrigenomics/nutrient: gene interactions, metabolism and metabolomics, nutritional control of function and performance, feed evaluation and feeding, diet and animal health) - Animal reproduction - Animal biotechnology - Animal physiology and functional biology of systems (such as reproductive and developmental biology, growth, muscle biology, lactation, exercise, product composition etc) - Animal ethology, behavior and welfare (such as social and sexual behavior, animal- man relationships, adaptation, stress, impact of management and environment on health, etc) - Animal products technology - Animal management and economics - Animal products processing and animal by-products - Animal microbiology - Livestock farming systems, environmental impact and climate changes (such as sustainable livestock management systems, whole farm management strategies, animal work, systems modeling, traceability, socio-economic consequences of systems, the impact of animals on biodiversity and landscape and climate changes, etc). - Other related topics (such as engineering, farming and land-use management and to other disciplines in relation to animal science).
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